CN108915116B - Self-adaptive energy-saving wall structure - Google Patents
Self-adaptive energy-saving wall structure Download PDFInfo
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- CN108915116B CN108915116B CN201810582651.4A CN201810582651A CN108915116B CN 108915116 B CN108915116 B CN 108915116B CN 201810582651 A CN201810582651 A CN 201810582651A CN 108915116 B CN108915116 B CN 108915116B
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/08—Louvre doors, windows or grilles
- E06B7/084—Louvre doors, windows or grilles with rotatable lamellae
- E06B7/086—Louvre doors, windows or grilles with rotatable lamellae interconnected for concurrent movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F5/0021—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using phase change material [PCM] for storage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
本发明公开了一种自适应节能墙体结构，在建筑墙体向阳侧上由外到内间隔设有玻璃幕墙和可驱动的百叶窗，所述玻璃幕墙和百叶窗之间的间隔形成空气流道，所述玻璃幕墙的上下分别对应设有可启闭的上通风口和下通风口，所述上通风口和下通风口的两端连通室外和空气流道，所述百叶窗的叶片为由相变材料层和反射隔热层组成的组合式结构。本发明在传统墙体的基础之上，舍弃了原有的集热墙体，换成节能百叶窗，其叶片分为反射隔热层和相变层，利用反射隔热层的太阳光辐射高反射率以及相变层内的相变换热作用，大幅度提高了隔热保温效果与能量储存与利用的效率，具有构造简单，成本低廉，材料清洁环保，适用范围广的优点。
The present invention discloses an adaptive energy-saving wall structure, wherein a glass curtain wall and a drivable blind are arranged from outside to inside on the sunny side of a building wall, an air flow channel is formed between the glass curtain wall and the blind, and an upper vent and a lower vent are respectively arranged on the upper and lower parts of the glass curtain wall, and both ends of the upper vent and the lower vent are connected to the outside and the air flow channel, and the blades of the blind are a combined structure composed of a phase change material layer and a reflective heat insulation layer. On the basis of a traditional wall, the present invention abandons the original heat collection wall and replaces it with an energy-saving blind, whose blades are divided into a reflective heat insulation layer and a phase change layer, and utilizes the high reflectivity of solar radiation of the reflective heat insulation layer and the phase change heat transfer effect in the phase change layer, thereby greatly improving the heat insulation effect and the efficiency of energy storage and utilization, and has the advantages of simple structure, low cost, clean and environmentally friendly materials, and a wide range of applications.
Description
Technical Field
The invention belongs to the field of building energy conservation, and particularly relates to a self-adaptive energy-saving wall structure.
Background
China is a typical country with large energy consumption. According to statistics, the total energy consumption of the national standard coal in 2017 is about 44.9 hundred million tons, the year-by-year increase is 2.9%, and the increase rate is improved by 1.5 percentage points compared with the last year. At present, the building energy consumption of China accounts for 47% of the total national energy consumption, and the green building is more and more frequently appeared in the engineering field. Except for the best-known photovoltaic building, the phase change material has obvious energy-saving effect and large development space, and is listed as a national research and development utilization sequence by China at present.
The traditional wall structure has poor heat-insulating property, and the high-efficiency storage and utilization of heat energy cannot be realized. The traditional Terambry wall structure mainly comprises a transparent movable cover plate, a heat collection wall body and an air interlayer, has limited indoor temperature regulation capacity and is influenced by the heat storage performance of the heat collection wall body. The Chinese invention patent 201120422347.7 discloses a novel double-flow-intermediate heat-insulation type solar phase-change heat storage wall system, which can flexibly realize the functions of heating, heat preservation, heat insulation and cooling required by a building in different seasons through the design of double-flow-passage and heat insulation layer and the design of proper air port switch, thereby meeting the problem of different requirements of the building in different seasons throughout the year. But the PCM layer can only drive heat exchange with the air temperature difference in the air channel, and the heat exchange efficiency is low. Patent 201610405307.9 discloses a lambertian curtain wall suitable for subtropical regions, which has heat collecting function, solar power generation function and can reduce heat load, but the shutter function in the patent is mainly solar power generation and ventilation, and the room temperature adjusting function is weak.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, one of the objectives of the present invention is to provide an adaptive energy-saving wall structure, which not only has the function of thermal insulation, but also can convert and store outdoor heat and cold into phase-change materials to realize the regulation of indoor temperature.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a self-adaptation energy-conserving wall body structure, is equipped with glass curtain wall and drivable shutter by outer to interior interval on building the wall body sunny side, the interval between glass curtain wall and the shutter forms the air runner, the upper and lower correspondence of glass curtain wall is equipped with the last vent and the lower vent that can open and close respectively, the both ends intercommunication outdoor and air runner of last vent and lower vent, the blade of shutter is the integrated configuration who comprises phase change material layer and reflection insulating layer.
Furthermore, the phase change material layer is composed of a shell made of aluminum alloy, copper alloy, HDPE or aluminum foil and a phase change material filled in the shell.
Furthermore, a phase-change material panel is arranged in the building wall, and spherical packaging phase-change materials, plate-shaped packaging phase-change materials, tubular packaging phase-change materials or bagged packaging phase-change materials are arranged in the phase-change material panel.
Furthermore, the phase change material panel is an XPS heat insulation board, a rock wool board, a foam concrete board, a concrete precast slab, a heat insulation mortar board, a rock wool board, a phenolic resin board or an expansion perlite board.
Further, the phase change material is a spherical packaging phase change material, a plate packaging phase change material, a tubular packaging phase change material or a bagged packaging phase change material.
Further, the phase change temperature of the phase change material in the phase change material layer is between 25 ℃ and 50 ℃.
Furthermore, the phase change material in the phase change material layer is solid alkane which is prepared by using oleic acid as a dispersing agent to precipitate for 110-130 hours and contains 0.05-0.07 wt% of nano graphite.
Further, the reflecting and heat insulating layer is composed of a hollow aluminum alloy layer and organic resin with the thickness of 15-25 microns coated on the surface of the hollow aluminum alloy layer.
Furthermore, a ventilation opening with a fan is arranged on the sun-back side of the building wall.
Furthermore, the louver comprises a louver frame, blades rotatably arranged in the louver frame through a rotating shaft and a driving device for driving the rotating shaft to rotate.
Further, the blind window also comprises a control system, and the control system can artificially set the opening and closing time period of the blind window to be automatically opened or closed in a specified time period or automatically adjust the orientation of the blades according to the intensity of solar radiation.
Compared with the prior art, the invention has the beneficial effects that: on the basis of the traditional wall, the solar energy-saving louver window abandons the original heat collection wall, is replaced by an energy-saving louver window, the blades of the louver window are divided into a reflective heat-insulating layer and a phase-change material layer, and the room temperature is comprehensively adjusted by utilizing the solar radiation high reflectivity of the reflective heat-insulating layer and the phase-change heat exchange effect in the phase-change layer, so that the purpose of saving energy is achieved.
Drawings
FIG. 1 is a diagram of a self-adaptive energy-saving wall structure according to the present invention;
FIG. 2 is a diagram of the operation of the adaptive energy-saving wall structure in summer at night according to the present invention;
FIG. 3 is a diagram of the self-adaptive energy-saving wall structure operating in summer and in the daytime according to the present invention;
fig. 4 is a transition season operation diagram of the adaptive energy-saving wall structure of the invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-4, a self-adaptive energy-saving wall structure, a glass curtain wall 2 and a rotatable shutter 3 are arranged on the sunny side wall of a building wall 1 at intervals from outside to inside, the gap between the glass curtain wall 2 and the building wall is filled with heat-insulating materials such as fireproof rock wool with the thickness of 100mm and galvanized iron sheet with the thickness of 1.5mm, and the inner surface and the outer surface are continuously sealed by silicone sealant. The space between the glass curtain wall 2 and the louver 3 forms an air flow channel 4, and the distance between the glass curtain wall 2 and the louver 3 is 65 mm. The upper and lower parts of the glass curtain wall 2 are respectively provided with an upper vent 5 and a lower vent 6, the upper vent 5 and the lower vent 6 are respectively provided with a ventilation baffle 7 which can be opened and closed, the two ends of the upper vent 5 and the lower vent 6 are respectively communicated with the outdoor and the air flow channel 4, and the blades 8 of the shutter 3 are of a combined structure consisting of a phase change material layer 8-1 and a reflective heat-insulating layer 8-2. Preferably, the phase change material in the phase change material layer 8-1 has a phase change temperature between 25 ℃ and 50 ℃.
Specifically, the phase change material layer 8-1 is composed of a shell made of an aluminum alloy (which may be a copper alloy, HDPE, aluminum foil, or the like) and a phase change material filled in the shell. The reflective and heat-insulating layer is a hollow aluminum alloy layer, the surface of the aluminum alloy layer is coated with 20 mu m organic resin, and the reflectivity is 1.45.
In order to further improve the room temperature adjusting performance, a phase change material panel can be arranged in the building wall 1, and spherical packaging phase change materials, plate-shaped packaging phase change materials, tubular packaging phase change materials or bagged packaging phase change materials are arranged in the phase change material panel. Preferably, the phase change material panel can adopt masonry structures such as XPS insulation boards, rock wool boards, foam concrete boards, concrete precast slabs, insulation mortar boards, rock wool boards, phenolic resin boards, expanded perlite boards and other various building insulation materials or hollow bricks.
In another embodiment, the phase change material is solid alkane which is prepared by using oleic acid as a dispersing agent and contains 0.06 wt% of nano graphite through precipitation for 120 hours, the nano graphite is added into the phase change material to enhance the heat transfer performance of the phase change material, and the oleic acid is used as the dispersing agent to ensure that the nano graphite can be uniformly dispersed in the phase change material.
In another embodiment, the building wall 1 is provided with a ventilation opening 10 with a fan 9 on the back and forth side wall, the fan 9 is preferably an axial flow fan, and indoor air flow is promoted by the fan 9 when indoor and outdoor wind pressure and hot pressing are not enough to form natural ventilation.
In another embodiment, the blind 3 includes a louver frame 11, a blade 8 rotatably mounted in the louver frame by a rotating shaft 12, a driving device (such as a motor) for driving the rotating shaft 12 to rotate, and a control system. The control system is electrically connected to a driving device (not shown in the figure) to form a control circuit, and the specific structure of the control circuit is not described in detail herein for the prior art. The louver frame 11 is made of 1070 type aluminum alloy and has a thermal conductivity of 236W/(m.K). The control system can artificially set the opening and closing time period of the shutter to be automatically opened or closed in a designated time period or automatically adjust the orientation of the blades 8 according to the intensity of solar radiation through the control circuit.
The working process of the invention is specifically explained according to the four-season operation condition as follows:
as shown in fig. 2, at night in summer, the louver 3 is closed, the phase change material layer 8-1 in the blades 8 faces the glass curtain wall, the ventilation baffle 7 is opened, outdoor low-temperature air naturally flows into the air flow channel 4 from the lower ventilation opening 6 to exchange heat with the phase change material in the phase change material layer 8-1, the phase change material is solidified to release heat, and the air after temperature rise flows back to the outside from the upper ventilation opening 5. Referring to fig. 3, in the daytime of summer, the ventilation baffle 7 is closed, the rotating shaft 12 of the blades is rotated to enable the phase change material layer 8-1 to face indoors, the phase change material in the phase change material layer 8-1 is melted to absorb heat, the indoor air temperature is reduced, and meanwhile, the reflective heat-insulating layer 8-2 can reflect most of solar radiation and plays a certain heat-insulating role. The circulation adjusting function of the room temperature of the self-adaptive phase-change material wall structure is realized by repeating the steps in the daytime and at night.
In winter, the shutter 3 is closed, the phase change material layer 8-1 in the blade 8 faces the glass curtain wall, the ventilation baffle 7 is opened, the phase change material layer 8-1 is melted and absorbs heat after receiving solar radiation, the ventilation baffle 7 is closed in winter at night, the blade rotating shaft 12 is rotated to enable the phase change material layer 8-1 to face indoors, the phase change material in the phase change material layer 8-1 is solidified and releases heat, and the indoor air temperature is increased.
As shown in fig. 4, in the transition season, the indoor temperature can be adjusted by making full use of the fresh outdoor air. At this time, the opening degree of the louver 3 can be manually adjusted according to needs, and outdoor fresh air enters the indoor space through the louver from the upper and lower ventilation openings and then flows out of the ventilation opening 10 through the fan 9.
The invention abandons the original heat collecting wall body on the basis of the traditional wall body, and changes the heat collecting wall body into an energy-saving shutter, the blades of the shutter are divided into a reflecting heat-insulating layer and a phase-change material layer, the room temperature is comprehensively adjusted by utilizing the solar radiation high reflectivity of the reflecting heat-insulating layer and the phase-change heat exchange effect in the phase-change material layer, thereby achieving the purpose of energy saving, the phase-change material layer converts and stores outdoor heat and cold into the phase-change material, and is used for indoor cooling in summer and daytime, and vice versa in winter.
The above examples are merely illustrative for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Nor is it intended to be exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (8)
1. The utility model provides a self-adaptation energy-conserving wall structure which characterized in that: the building wall is provided with a glass curtain wall and a driven shutter at intervals from outside to inside on the sunny side, the interval between the glass curtain wall and the shutter forms an air flow channel, the upper part and the lower part of the glass curtain wall are respectively and correspondingly provided with an upper vent and a lower vent which can be opened and closed, and the two ends of the upper vent and the lower vent are communicated with the outdoor air flow channel and the air flow channel;
the blades of the shutter consist of a phase change material layer and a reflective heat insulation layer which are arranged in an overlapped mode;
the phase change material in the phase change material layer is solid alkane which is prepared by using oleic acid as a dispersing agent to precipitate for 110-130 hours and contains 0.05-0.07 wt% of nano graphite.
2. The adaptive energy-saving wall structure according to claim 1, wherein: the phase change material layer is composed of a shell made of aluminum alloy, copper alloy, HDPE or aluminum foil and a phase change material filled in the shell.
3. The adaptive energy-saving wall structure according to claim 2, wherein: the building wall is provided with a phase change material panel, and spherical packaging phase change materials, plate-shaped packaging phase change materials, tubular packaging phase change materials or bagged packaging phase change materials are arranged in the phase change material panel.
4. The adaptive energy-saving wall structure according to claim 3, wherein: the phase-change material panel is an XPS heat-insulation plate, a rock wool plate, a foam concrete plate, a concrete precast slab, a heat-insulation mortar plate, a rock wool plate, a phenolic resin plate or an expanded perlite plate.
5. The adaptive energy-saving wall structure according to claim 1, wherein: the phase change temperature of the phase change material in the phase change material layer is between 25 ℃ and 50 ℃.
6. The adaptive energy-saving wall structure according to claim 1, wherein: and a ventilation opening with a fan is arranged on the sun-back side of the building wall.
7. The adaptive energy-saving wall structure according to claim 1, wherein: the shutter comprises a louver frame, blades rotatably arranged in the louver frame through a rotating shaft and a driving device for driving the rotating shaft to rotate.
8. The adaptive energy-saving wall structure according to claim 1, wherein: the shutter also comprises a control system, and the control system can artificially set the opening and closing time period of the shutter to be automatically opened or closed in a designated time period or automatically adjust the orientation of the blades according to the intensity of solar radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582651.4A CN108915116B (en) | 2018-06-07 | 2018-06-07 | Self-adaptive energy-saving wall structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810582651.4A CN108915116B (en) | 2018-06-07 | 2018-06-07 | Self-adaptive energy-saving wall structure |
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| CN108915116B true CN108915116B (en) | 2020-03-27 |
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| CN110016996A (en) * | 2019-04-08 | 2019-07-16 | 东北石油大学 | The rotatable structure of glass fender containing phase-transition heat-preserving |
| CN110318654A (en) * | 2019-07-12 | 2019-10-11 | 东北石油大学 | A shuttle-type phase change louver hollow glass window |
| CN111425967B (en) * | 2020-02-21 | 2021-05-25 | 天津大学 | A heating and cooling system coupling an additional sun room and a double-layer rotating phase-change wall |
| CN112112523A (en) * | 2020-09-27 | 2020-12-22 | 四川大学 | Double-layer phase change heat storage window structure with retractable blades |
| CN112211532A (en) * | 2020-09-27 | 2021-01-12 | 四川大学 | A phase-change energy storage window accessory with rotatable blades with retractable function |
| CN112443256A (en) * | 2020-11-23 | 2021-03-05 | 东北石油大学 | Phase-change energy-saving window with ventilation function |
| CN112627694B (en) * | 2020-11-30 | 2022-06-10 | 深圳景源达建设集团有限公司 | Energy-saving window |
| CN112696747A (en) * | 2020-12-26 | 2021-04-23 | 深圳市宝晟建设集团有限公司 | Ventilation type double-layer curtain wall system |
| CN113047467A (en) * | 2021-04-01 | 2021-06-29 | 陈杨 | Energy-saving building wall structure |
| CN113123488A (en) * | 2021-04-26 | 2021-07-16 | 恩拓必(临沂)能源发展有限责任公司 | Dynamic building enclosure system |
| CN113202399A (en) * | 2021-05-25 | 2021-08-03 | 东北石油大学 | Phase transition shutter energy-saving window can overturn |
| CN113374118A (en) * | 2021-07-01 | 2021-09-10 | 中国人民解放军军事科学院国防工程研究院 | Novel phase-change energy-saving wall based on active and passive adjustment technology |
| CN113819545B (en) * | 2021-07-27 | 2023-06-06 | 西安交通大学 | Wall body |
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| CN113982154B (en) * | 2021-11-17 | 2022-11-11 | 中国建筑西北设计研究院有限公司 | Automatic pulling structure of building epidermis |
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